Buffer check for loom pickers



July 24, 1923;. .lA-62,56@ v J. J. KURTZ BUFFER CHECK FOR LOOM PCKERSvFiled Aug. l, 1922 Awami?? S14/vento@ Joejnfz JOUQ Kurtz.

Patented July 24, 1923.,

narran' sraras JOSEPH JOHN KURTZ, 0F SHAMOKIN, PENNSYLVANIA.

BUFFER CHECK FOR LOOM PICKERS.

Application fi1ed August 1, 1922.

To all whom t may concern Be it known that I, JOSEPH J. KURTZ, a citizenof the United States, and a resident of Shamokin, in the county ofNorthumberland and State of Pennsylvania, have invented new and usefulImprovements in Buffer Checks for Loom Pickers, of which the followingis a full, clear, and exact description.

ln the operation of looms theshuttle is thrown back and forth from oneshuttle box to another, and is arrested at each end of its travel by adevicenamed the picker, which slides on one or more rods and has aportion projecting into the path of the shuttle.

The picker acts as a buffer for the shuttle by affording a yieldingresistance thereto; and also, of course, it reverses the direction oftravel of the shuttle. Various devices have been suggested and tried asbufferchecks for the picker; but because of the innumerable and rapidstresses to which the buffer is subjected, all of the devices previouslysuggested have lacked durability. Leather has produced the best results,but it is well known that the life of even the leather buffers isextremely short.

The object. of the present invention is therefore to provide abuffer-check for loomV pickers which will not only be highly resilientbut also will possess great durability in operation; and which will beinexpensive in manufacture.

Vith the foregoing and other objects in view I will now describe indetail the preferred form of my invention, reference being had to theaccompanying drawings; in which,

Figure l is a plan view of the apparatus; the shuttle box and shuttlebeing shown in dotted lines.

Figure 2 is a front elevation of the apparatus; the shuttle box andshuttle being removed.

Figure 3 is a perspective view of the appara-tus; parts thereof beingbroken away.

Figure 4 is a plan View of a portion of the picker; the remainderthereof being shown in dotted outline; and

Figure 5 is a detail sectional view of the recoil member and the buffermounted therein.

Referring to the drawings more in detail, numeral l indicates theshuttle box in which the shuttle 2 is reciprocatede A picker rod,

Serial No. 578,872.

is indicated by numeral 8, and slidably mounted on said rod is thestandard or conventional picker 4. A. picker-stick 5 enters a slot inthe picker in the usual manner, 00 said picker-stick being provided withany ordinary means not shown) for moving it and through it the picker,in such manner as to shoot the shuttle back and forth. The foregoingstructure has been only bri elly described as it is old and well knownin the art and constitutes no part of thepresent invention.

It is also old to provide a buffer at each end of the path of the pickerto afford a yielding resistance to the shuttle, and to reverse thedirection of travel thereof. My invention relates to improvements inthis buffer.

Recoil members are indicated by numerals 6, 6. These recoil members arepreferably made of solid rubber, though they may be made of othermaterial such as leather, and are provided with two holes whereby theymay be mounted on the picker-rod 3, one of the holes being indicated bynumeral 7. Thermanner in which the recoil member is mounted on the rodis obvious from an inspection of the drawings, the arrangement beingsuch that the inner portion of the recoil member is free to move backand forth on the picker rod, to take up the recoil as the picker strikesand to reverse the direction of movement thereof.

One of the serious disadvantages of the buffer-checks previously known,is that because of the wear and tear they have only an extremely shortlife. In accordance with my invention I out a portion indicated bynumeral S, from the picker and insert the leg 9 thereof into the hole 7of the recoil member 6. The recoil member 6 being preferably made ofrubber, no securing` means need be provided, the resiliency of therubber being suiiicient to maintain the element in operative position.The cut-out portion 8 of the picker may be termed a buffer, andcomprises, in addition to the leg 9, a shoulder 10 which projects beyondthe surface of the recoil member and receives the blows from the picker.

A buffer-check constructed in this manner possesses an unusually highdegree of durability, and after long use if the buffer element has worndown considerably it is only necessary to remove the buffer and insertanother in the hole 7 of the recoil member G. It should bementioned herethat the cost of the buffer elements will be nil, for they are merelycut out of the discarded pickers. These pickers are usually made oiteowhide or similar' material and as they are rapidly Worn on account ofengagement with the picker, their life is relatively short. rl`he priorpractice has been to destroy the pickers when they became Worn out, butunder the presennt invention when a picker is discarded the bufferportion will be out out and retained for use in connection with therecoil member, in the manner previously described.

It may also be noted that in accordance with my invention the pickerwill strike against a buffer made of the same material, for the butleris merely a portion of a discarded picker.

It Will be understood, of course, that this buffer is adapted to usewith any type of loom, and may be used at both ends, as illustrated, orat one end only, in some types of looms. v

From the 'foregoing description it will be obvious that I have inventeda. buffer-check for loom-pickers Which not only possesses durability toan 'unusually high degree, but also one 1n which the buffer element maybe renewed-Without any additional expense.

4ln accordance with the patent statutes, I have described What l noivbelieve to he the 'best embodiment of the invention, but I do not `Wish"o be understood thereby as limitfing'myself or the scope of theinvention, as

many changes and modifications may be made Without departing` from thespirit ot the invention; all such I aim to include in' the scope of theappended claims.

Vhat l claim as newv and desire to secure by Letters Patent is:

l. A buffer-check Afor loom-pickers, including; a rubber recoil member,and a butler mounted in said rubber recoil member, the resiliency of therecoil member constituting the retaining means for the buffer.

2, A, butter-check tor loom-pickers, including a recoil member, and abuiler associated with the recoil member, said buffer including ahollenv legl member cut from a portion of a standard picker, said legmember adapted to be attached to the recoil member.

3. ln a buffer-check for loom-pickers, a butter, said butlerconstituting a cut out portion of a standard picker and comprising a anda shoulder and a recoil member, said leg adapted to be attached to therecoil member.

et. A buffer for use in connection with loom-pickers, said buffercomprising a hollow leg and a shoulder, said leg adapted to be attachedto a recoil member, the crosssectional shape ,o't the butter being substantially the same as the cross-sectional shape or a standard picker.

4 JOSEPH JOHN KURTZ. Witness:

HARRISON l-lnsnor.

